JPH04211705A - Method and device for automatically incorporating and clamping clamp - Google Patents

Abstract

PURPOSE: To simplify a structure, provide reliability in operation and reduce manufacturing cost and operating cost by equipping a driving mechanism driving a holding device, first and second jaw-like members and other jaw-like members in a prescribed order. CONSTITUTION: This device is provided with a holding device holding a clamp structure at a prescribed location for an object 90 to be tightened, a first jaw- like member 30 pressing the part of a clamp belt 101 having an inside belt part 102 around the object 90 to be tightened and a second jaw-like member 40 which presses the part of the clamp belt 101 having an external belt part 103' around the object 90 to be tightened and is prepared for fitting a hook 104 into an aperture 103'. A clamp structure is tightened around the object 90 to be engaged and tightened with a tightening arrangement 105 by at least one of other jaw-like members 50, 50', and the holding device, first and second jaw-like members 30, 40 and other jaw-like members 50, 50' are driven by driving mechanisms 39, 49 in a prescribed order.

Description

[Detailed description of the invention]

0001

FIELD OF INDUSTRIAL APPLICATION This invention relates to a method and apparatus for incorporating and tightening a clamp around an object to be tightened, and particularly to a clamp that is tightened and used in an open state around an object such as an axle cover. Concerning a fully automatic assembly and tightening method and its device.

0002

2. Description of the Related Art A device for automatically assembling and tightening a clamp around an object to be tightened is disclosed in Patent Publication No. 07/016,794, 1987 by the present applicant.
The application was filed on February 20, 2015, and the title of the invention is ``Method and device for automatically assembling and tightening a clamp on an object to be tightened,'' and the applicant's patent publication No. 07
/160,004 specification, February 1988 2
The application was filed on the 4th, and the title of the invention is ``A device and method for automatically equipping a clamp.'' In these applications mentioned above, a flat workpiece is transformed at a transformation station;
Create a circular clamp that corresponds to the outer shape of the object being clamped. The clamp deformed in this way is fixed in a circular structure in the deformation station, but is transferred from the deformation station, which is placed on the object to be clamped by a conversion mechanism, and finally forms a so-called "ethical structure" around the object to be fixed. ”
It is fixed by plastic deformation of the ear. The apparatus disclosed in the applicant's patent application referred to above has proven to be very successful. However, in some cases,
Once the open clamp is assembled directly around the object to be tightened, the overlapping ends of this clamp are mechanically connected, and the clamp is placed around the object to be tightened,
It is desirable to tighten these.

0003

[Problems to be Solved by the Invention] Therefore, an object of the present invention is to fully automatically assemble an open clamp directly around an object to be tightened, place this clamp on top of the object to be tightened, and to The purpose of this invention is to provide a method and device for tightening.

Another object of the invention is to provide a device for automatically assembling and tightening an open clamp on an object to be tightened, which is simple in construction, reliable in operation, and operates fully automatically. It is about providing.

Another object of the invention is the use of the above-mentioned jaws incorporated by a pivot axle carried with a pneumatic device on a slidable support structure forming a compact subassembly. The objective is to provide a new type of device.

Another object of the invention is to provide a device of the above-mentioned type which facilitates automatic sequence control using conventional control equipment for sequentially activating and deactivating pneumatic piston and cylinder units. There is a particular thing.

Another object of the invention is to apply an open clamp, preferably a previously deformed clamp, around the object to be clamped, and to apply it once to the object to be clamped to tighten this clamp. The object of the present invention is to provide a simple tool with a structure composed of a small number of simple parts.

[0008]

SUMMARY OF THE INVENTION The above object is achieved by the present invention, in which at least one hook extends outwardly into the region of the clamp belt forming an inner belt portion; at least one corresponding aperture in the area of the clamp belt forming an outer belt portion that overlaps the inner belt portion when the clamp structure is installed around the object to be tightened and the clamp structure around the object to be tightened; a clamping arrangement of a clamp belt that clamps a clamp belt; a retaining device for holding the structure, a first jaw member for pressing a portion of the clamp belt having an inner belt portion around an object to be clamped, and a first jaw member for pressing a portion of the clamp belt having an outer belt portion around an object to be clamped; , a second jaw member provided for engaging the hook in the aperture, at least one other jaw member that engages the clamping arrangement and clamps the clamping structure about the object to be clamped; The problem is solved by a device that is equipped with a drive mechanism for driving a single jaw member, a second jaw member and another jaw member in a predetermined sequence.

[0009] The above problem is solved according to the present invention by a method of automatically incorporating and tightening an open clamp around an object to be clamped, which comprises the following steps: forming an internal belt portion that securely holds the clamp; snapping the belt portion and placing the portion around the object to be tightened, then snapping the belt portion forming the outer belt portion, and the mechanical connection, including at least one hook of the inner belt portion, forming the outer belt portion; The previously held clamp is released and is now held around the object to be tightened, and then the clamp is adjusted to fit into the mating aperture on the external belt section. It is solved by a method consisting of tightening a clamp around.

0010

According to the invention, a first jaw-like member pivotally supported on a support structure and driven by a hydraulically operated driver first forms a free belt end around an object to be clamped to form an internal belt portion. guess. A second jaw member is also pivotally supported on the support structure and, when actuated by a hydraulically driven driver, this member overlaps around the object to be clamped in overlapping relationship with the previously applied internal belt portion. Place the opposite end of the belt that forms the outer belt portion;
A mechanical coupling consisting of one or more outwardly extending hooks on the inner belt section fits into a mating aperture or apertures on the outer belt section. By means of a common hydraulically actuated driver, the other two jaw-like members, preferably cooperating, turn the outwardly extending leg portion of the plastically deformable ear of a typical "echker" into a pincer-like protrusion. When fitted, the ears are plastically deformed after the outwardly extending hook or hooks fit into the mating aperture or apertures, and the clamp is tightened around the object to be clamped.

[0011] According to another aspect of the invention, the retaining device incorporating the retaining device around the object to be clamped and retaining the clamp is operated by a hydraulic drive. The driver retains the clamp approximately centrally on the driver by opposed clamp retaining finger members. One of the finger members is fixed and the other is movable to selectively hold or release the clamp. These clamp retaining finger members thus clamp the clamp along opposite narrow sides of the clamp belt, depending on the belt thickness dimension.

According to another aspect of the invention, a jaw member;
The drive and holding device are all assembled on a common support structure and form a subassembly that is slidable relative to a fixed foundation or frame. This subassembly, together with the clamp held by the holding device, can thus be moved from a non-operational starting position away from the object to be clamped towards the object to be clamped, yet in the immediate vicinity thereof.

According to another aspect of the invention, the jaw member has a curved internal engagement surface that generally corresponds to the rounded portion of the barbell predeformed clamp. The pre-deformed curved portion also substantially corresponds to the outer surface of the cylindrical object to be clamped.

[0014]

BRIEF DESCRIPTION OF THE DRAWINGS The features and advantages of the invention will be explained in more detail below on the basis of the accompanying drawings, which are given by way of example only.

[0015] Identical parts are provided with the same reference numerals in all the drawings. For example, in FIG. 1 the reference numeral 10 generally represents a part of a machine frame which is schematically shown in this figure by means of a relatively fixed machine part, for example a flat foundation 11. This member may be, for example, the upper part of the housing of a machine having a sequence control of known construction and which does not form an essential part of the invention. At the left end of the flat foundation 11 is a pedestal 12. Here, a clamp is assembled around the object to be clamped, as will be explained in more detail below. However, the flat base 11 and the pedestal 12 are shown only to explain the principle of operation of the device of the invention;
It may be modified in any suitable manner to adapt the requirements of this device to the surrounding environment.

Transverse frame members 13 and 14 fixedly installed on the foundation 11 carry support bars 15 and 16. A clamping tool subassembly, equipped with a clamp, generally designated 20, is slidably incorporated onto these bars. This subassembly 20 has two straight plate-shaped support members 21 and 22. These members are disposed on opposite sides of two spaced side plates, only 23 of which are shown. The incorporated support plate 24 is
It is held by the side plate. These side plates are all of suitable thickness and are fixed to straight support members 21 and 22.

The clamp installation and tightening tool subassembly 20 includes a first jaw member, further generally designated by the reference numeral 30 (FIG. 4). This member is generally triangular. One leg 31 of this first jaw-like member 30 includes:
There is a rounded inner surface 32 into which the clamp fits, generally matching a portion of the shape of the object to be clamped. This inner surface 32 includes hooks 32 and 3 of the inner belt portion, as shown, for example, in my U.S. Pat. No. 4,299,012.
There is a recess 33 housing one or more outwardly extending hooks such as 1. The other leg 34 of the first jaw member 30 is pivotally connected about a central pivot support 35 fixedly incorporated onto the support plate 24 . The apex 35 of the generally triangular shaped first jaw member 30 is pivotally mounted at the reference numeral 37 to the free end of a piston rod 38 of a pneumatic piston and cylinder unit, designated generally at the reference numeral 39. possible to connect. This unit forms the driver of the first jaw, the cylinder housing of which is pivotally connected to a support lug or bracket 27 fixed to the support plate 24 at reference numeral 26.

The second jaw-like member, generally designated by the reference numeral 40, is also generally triangular in shape, but it has a leg 41 with a rounded inner surface 42 for receiving a clamp. This inner surface has a central recess 6 of the applicant's aforementioned U.S. Pat. No. 4,299,012 forming a so-called stepless section.
Reference numeral 4 to accommodate a channel-shaped recess like 3.
It's at number 3. The other leg 44 of the generally triangular shaped second jaw member 40 is also pivotably connected to the central pivot support 35 . On the other hand, the apex 46 of the second jaw member 40 is pivotally connected at 47 to the free end of a piston rod 48 of a pneumatic piston and cylinder unit, generally designated 49. Said pneumatic piston-cylinder unit forms the driver of the second jaw, the cylinder housing of which is pivotally connected to a lug or bracket 29 fixed to the support plate 24 at reference numeral 28. .

Tool subassembly 20 further comprises two generally triangular shaped jaw members 50 and 50'. On one of the legs 51 and 51' of these members, there is a
There are pincer-like projections 52 and 52' that are used to plastically deform the ears. Said other jaw-like members 50 and 50'
The other legs 53 and 53' are also pivotally connected at the central pivot support 35. Other jaw-like members 50 and 5
0' vertices 54 and 54' are pivotally connected to respective connecting lugs 56 and 56' at reference numerals 55 and 55'. In that case, the opposite ends of the connecting lugs 56 and 56' are pivoted at a common pivot connection 57 to the free end of the piston rod 58 of the pneumatic piston and cylinder unit, generally designated by the reference numeral 59. They are connected so that they can be attached (Figure 1). Said pneumatic piston and cylinder unit is supported on the straight support member 22 by means of support brackets 60 and 61 using support rods 62 and two other jaw members 50 and 50'.
It forms the driver of the

The clamp retaining device, generally designated by the reference numeral 70, includes a lower fixed finger member 71 (FIGS. 2 and 3) for retaining the clamp and a longitudinally extending member 7.
There is an upper movable finger member 72 holding a clamp pivotally connected to the housing 73 at a pivot connection 74 by 5 (FIG. 2). Movable clamp holding structure 72, 7
5 is biased upward by a spring 75 to release the holding device 70. In order to hold the clamp belt 101 in place within the holding device 70 along its opposite narrow side, a backstop 77 is provided, which engages the clamp inset surfaces 7 of the clamp retaining finger members 71 and 72.
8 and 79 connect the clamp belt 101 to the backstop 77
It is arranged at an angle so as to press against the

A pneumatically operated piston and cylinder unit, generally designated by the reference numeral 80, which forms the driver of the clamp retainer, is connected to the bolt 81.
The piston rod 82 is fixed to the support plate 24 by
The extending movement of the movable clamp retaining structures 72, 75 operates in conjunction with the movement of the support plate to engage or move the movable clamp retaining structures 72, 75 in a clockwise pivoting direction.

Sliding subassembly 20 is selectively slidably moved by pneumatic piston and cylinder unit 85 (FIG. 1). The piston rod 86 of this unit extends through the transverse frame member 14 and is connected at its free end to the straight support member 22.

The clamping object, designated generally by the reference numeral 90, is, in the illustrated embodiment, a shaft cover made of silicone rubber or "Hytrel" plastic material and having a cylindrical surface 91. . A clamp is mounted around this surface and the fixing member 9
Tighten this object 90 around 3.

A clamp (FIG. 5), designated generally by the reference numeral 100, is disclosed in the applicant's US Pat. No. 4,299.
No. 9,012, as illustrated and disclosed, or co-application series no. 06
No. 922,473, the invention is of the type "Hose Clamp". For example, Applicant's U.S. Patent No. 4,425,7
Using an apparatus such as that disclosed in No. 81,
The clamping structure, preferably preformed in the shape of an array, consists of a clamping belt held in position along the narrow side by a holding device 70. The holding device fits the clamp belt approximately in the center of the straight section 101 of the clamp belt. The pre-deformed end 102 of the clamp belt forms the inner end of the clamp belt;
Preformed approximately into the structure of the clamped object 90, this end 102 has a mating member provided at the free end 103' of the preformed clamping belt end 103 forming an overlapping outer belt section. There are one or more outwardly extending hooks 104 that fit into an aperture (not shown). The overlapping outer belt portion has the same characteristics as those described in Applicant's Patent Publication No. 06/922,408 (19
As disclosed in the application entitled "Deformable Ears for Clamps" (filed October 23, 1986), typical "Etchikar" ears mainly provided with reinforcing grooves or shallow depressions. There are 105. In order to create a so-called stepless configuration, i.e., the inner surface of the mounting clamp structure without steps or gaps, the inner belt portion 102 is provided with a groove as described in detail in my U.S. Pat. No. 4,299,012. As such, there is a tongue-like extension 107 that fits into an extruded central channel 108 defined by steps 109 and 109'.

Furthermore, a free pivoting movement of the two jaws 30 and 40 and of the other two jaws 50 and 50' is possible around the same pivot connection 35 without interference with each other; In order to operate the clamp engaging parts 31, 41, 51 and 51' in the same horizontal plane, a step 13 is provided on the jaws 30 and 40.
0 and 140 are provided (FIGS. 4 to 8). Stage 130 is shown in FIG.
It is also shown in the perspective view. Furthermore, the jaw members 30 and 40
The regions in which the legs 53 and 53' pivot at 35 are also offset from each other in the vertical direction. This can be achieved, for example, by reducing the normal thickness of the jaws in said region by approximately half (not shown). Accordingly, the main parts of the jaws 30 and 40 operate in one horizontal plane, and the main parts of the jaws 50 and 50' operate in another horizontal plane disposed below the horizontal plane of the jaws 30 and 40. It works. For simplicity, these offset arrangements are not shown in the drawings.

Operation The operation of the device according to the invention is fully automatically controlled using known components and with the aid of a pressurized medium which does not form part of the invention. For reasons of simplicity, only the ends of the conduits connecting to the pneumatic piston-cylinder units forming the drives for the various moving parts of the device according to the invention are shown schematically in the drawings.

FIG. 4 shows the tool of the device according to the invention with all the jaws 30, 40, 50 and 50' in the fully open position, in the retracted starting position, ie the rightmost position in this figure. A subassembly 20 is shown. In this position, the clamps, preferably predeformed in an array, are fed to the holding device 70 manually or by conventional automated means, and the pneumatic drive 80 is actuated to a position (not shown in this figure). ) is held. The driver pivots the movable clamp retaining finger member 72 clockwise about the pivot connection 74 as the piston rod 82 extends. As a result, the clamp belt is secured against the backstop 77 by the clamp engagement surfaces 78 and 79 in a straight section (FIG. 5).
).

Pneumatic driver 85 is then operated to move tool subassembly 20 toward object 90 to be clamped, ie, toward the left in FIG. 1 as indicated by arrow A in FIG. The position of tool subassembly 20 after reaching the left extended end during this operation is shown in FIG.

Next, the pneumatic driver 39 drives the piston rod 38
It works to prolong the. This piston rod, by means of a pivot connection and the structure of the first jaw 30, engages this jaw with a portion 102 of the belt forming an internal belt section. This stage of operation is indicated in FIG. 6 by arrows B and B'. FIG. 6 shows the final fully extended position of the piston rod 38 and the corresponding final position of the first jaw member 30.

During the next phase of operation, pneumatic driver 49 operates to spread its piston rod 48 as shown by arrow C in FIG. As a result, the second jaw member 40 is attached to the belt portion 10.
3 and place this part around the object to be clamped in the position shown in FIG. In this view, the hooks (FIG. 7) are aligned and fit into mating apertures (not shown) in the normally overlapping outer belt portions 103.

During the next phase of operation, the pneumatic drive 80 is paused, causing the holding device 70 to stop moving. This device is no longer necessary as the clamp is held loosely in position around the object 90 clamped by the first and second jaws 30 and 40. Pneumatic driver 59 is then activated to extend piston rod 58 . As a result, the other two jaw-like members 50 and 50' are given a pivoting movement by means of the joints 56 and 56', and the pliers-like protrusions 52 and 52' are fitted into the leg parts of the ears of the Echker. Therefore, this arrangement is preferably such that the protruding part 52' contacts the corresponding leg of the ear of the Echker immediately before the protruding part 52 contacts the other leg, tightening the clamp. before ensuring that the outwardly extending hook 104 fits into the mating aperture. Such engagement does not occur upon completion of operating steps C, C' of FIG. The final position of jaws 50 and 50' is shown in FIG. In this figure, pliers-like protrusions 52 and 52' plastically deform the "echker" ears 105 in the usual manner. At this point, the clamp is securely fixed around the object 90 clamped by the clamp. When this fixation is completed, the pneumatic drive 59 is first deactivated, the piston rod 58 is retracted, and the jaws 50 and 50' are opened. After that, the pneumatic actuators 49 and 39 stop operating,
Opening first the jaws 40 and then the jaws 30, the pneumatic actuator 85 is then deactivated and the tool subassembly 20 is retracted to the starting position of FIG.

To equip a second clamp around the same object, for example around the cylindrical surface 92 of an axle cover, it is only necessary to move the object 90 to be clamped to a different position. In that position, the same tool subassembly of the automatic installation tightening device is equipped and designed for the larger diameter of said cylindrical surface 92. It is therefore to be understood that FIG. 1 only shows, somewhat schematically, one station of the automatic device according to the invention, which can be equipped with as many stations as necessary and which will not be referred to in this specification. Based on the principles as disclosed, principles of operation and components related to the principles of operation may be used. Furthermore, the type of objects that can be clamped with the device according to the invention is not limited to axle covers, but can also be applied to other objects that can be clamped. Furthermore, the clamping structure is not limited to that described herein, for example, as described in Applicant's Published Patent No. 07/446,700, 19
The present invention may be a balanced clamp structure as disclosed in the application filed on November 6, 1989, entitled "Balanced Clamp Structure." The balanced clamping structure in said published patent specification describes an open clamp provided with oppositely disposed ears and other graduations that ensure a balanced condition of the clamping structure, for example in FIG. ing. The subject matter of the last-mentioned application is described in the cited documents.

Additionally, applicant's US Pat. No. 4,425
, 781 can be incorporated into the automatic device according to the invention. In that case, the deformed clamp is fed by some means to the machine tool subassembly 20 in the position shown in FIG. 4 before beginning the described operating cycle.

Although the applicant has shown and described only one embodiment according to the invention, the invention is not limited to that embodiment and is susceptible to numerous modifications and improvements, as will be known to those skilled in the art. It should be understood that it can be done. It goes without saying, therefore, that the invention is not limited to the details shown and described, but rather all modifications and variations of the structure defined in the claims are within the scope of the invention.

[0035]

[Effects of the Invention] The significant advantages of the device for automatically assembling and tightening clamps according to the present invention are that the structure of the device is simple, the operation is reliable, and it is automated by sequential operation, which reduces manufacturing and operating costs. .

[Brief explanation of the drawing]

1 is a somewhat schematic perspective view of a device according to the invention for assembling and tightening a clamp around an object to be clamped; FIG.

2 is an enlarged side view, partially in section, of a retaining device according to the invention for retaining a clamp in position; FIG.

3 is a side view of the holding device of FIG. 2 seen from another direction; FIG.

4 is a partial top plan view of the machine tool subassembly of the device according to the invention, in particular showing parts of the machine tool subassembly in a retracted starting position before feeding the clamp to the holding device; FIG. It is.

FIG. 5 shows the parts of the machine tool subassembly as it is moved toward a position extended from the starting position of FIG. 4 and close to the object to be clamped, held by a holding device; 5 is a partial top plan view of the machine tool subassembly of FIG. 4 showing the clamps predeformed into an array; FIG.

FIG. 6 is a top plan view similar to FIG. 6 showing the next stage of operation of the machine tool subassembly in which the first jaw member abuts the end of the clamp belt to form an internal belt portion around the object to be clamped; It is a diagram.

FIG. 7 is similar to FIG. 6 and shows the next state of the machine tool subassembly when the second jaw member moves to move another belt section to form an external belt section around the object to be clamped; FIG. 6 is a top plan view illustrating operational stages.

FIG. 8 shows a mechanical tool subassembly similar to FIG. 7 in which the other two jaws with pliers-like protrusions fit into the legs of the plastically deformable Echkar ears; FIG. 6 is a top plan view showing the next stage of operation;

[Figure 9] When the clamp belt is completely tightened around the object to be clamped by plastically deforming the ears of "Echikar",
Indicates the position of the pliers-like projections of the other two jaw-like members,
FIG. 3 is an enlarged partial perspective view of the clamping object seen from the front;

[Explanation of symbols]

10 Fixed mechanical part 11 Flat foundation 12 Pedestal 13, 14 Horizontal frame 15, 16 Support rod 20 Clamp-incorporated tightening tool subassembly 30, 40
, 50, 50' jaw-like members 31, 32, 41, 42
Legs 31, 32 Hooks 38, 48, 58, 82 Piston rods 39, 49
,80,85 Pneumatic driver 49,80
Pneumatic piston/cylinder unit 52, 52' Pliers-like projection portion 56, 56' Lug 70 Clamp holding device 72 Clamp holding finger member 74
Pivot connection 77 Backstop 90 Tightened object 100 Clamp 101 Clamp belt 102 Internal belt section 103 External belt section 103' Aperture 104 Hook 105 "Echikar" ears

Claims (12)

[Claims] 01. At least one hook (104) extending outwardly into the region of the clamping belt forming the inner belt portion (102) and the object to be engaged by this hook (104) and to be clamped. At least one corresponding aperture (103') in the area of the clamping belt forming an outer belt part (103) which overlaps the inner belt part when the clamping structure is installed around the object to be clamped. Tightening arrangement of the clamp belt that tightens the clamp structure (1)
A device for automatically fixing an open clamp structure (100) formed by a clamp belt (101) having a retaining device (70) for holding the clamping structure in place against the object, and a first jaw member (30) for pressing the portion of the clamping belt with the internal belt portion around the object to be clamped
) and a second jaw member (40) provided for forcing the portion of the clamp belt with the external belt portion around the object to be clamped and for fitting the hook into the aperture.
and at least one other jaw member (50, 50') that engages the clamping arrangement (105) and clamps the clamping structure around the object to be clamped; A drive mechanism (80, 39, 49,
59). 02. The clamping arrangement is arranged on the side of said aperture (103') opposite the free end of the external belt part (103) of the clamp belt and has a generally outwardly directed section interconnected by a bridging part. It has a plastically deformable ear (105) with two extending leg parts, the other jaw-like member (50, 50') having a plastically deformable ear (105) that fits into the leg part of the ear (105) and plastically deforms the ear. Opposite plier-like parts (52, 52') that bring the clamp structures into contact
).) Apparatus according to claim 1. 03. The drive mechanism includes a first jaw-like member (30
), the second driver (49) of the second jaw member (40), and the third driver (80) of the holding device (70).
) and at least one further driver (59) for the other jaws (50, 50'), said further driver (59) for driving the two other jaws (50, 50'). 3. Device according to claim 1, characterized in that the pliers-like parts (52, 52') are driven together. 4. The clamping structure (100) as received by the holding device (70) is at least partially pre-deformed and approximately corresponds to the general contour of the corresponding part of the object to be clamped (FIG. 5). ), the first and second jaw-like members (30, 40) having internal surface portions (32, 42) that correspond at least approximately to a typical cylindrical surface. The device according to item 1. 5. The clamping structure (100) as received by the retaining device (70) is generally array-shaped (FIG. 5), and the retaining device (70) comprises a generally array-shaped clamping structure (100). its straight line part (101)
The clamping belt (101) has a predetermined width and thickness, and the holding device (70)
5. Device according to any of the preceding claims, characterized in that the clamping structure is held by being fitted onto the opposite narrow side of the clamping belt formed by its thickness (FIG. 2). 06. The piston cylinder of the other driver (59) is arranged in such a way that the extension of the piston rod (58) causes the free ends of the two pliers-like parts (52, 52') to perform a pinching movement of the pliers. The piston rod (58) of the unit is pivotally connected to two other jaws (50, 50'), and the two other jaws (50, 50') are connected to the built-in support (20). ), such that extension of the piston rod (38) causes the first jaw (30) to engage a corresponding portion (102) of the clamp belt (100);
The piston rod (38) of the piston-cylinder unit of the first driver (39) is connected to the first jaw member (30),
Moreover, this first jaw-like member (30) is the assembly support (20).
A corresponding position part (102) is placed around the object to be connected and tightened, temporarily held, and the piston rod (4
8) causes the second jaw member (40) to fit into the corresponding portion (103) of the clamp belt (100);
placing said corresponding part around the object to be tightened;
The outer belt portion (103) is connected to its aperture (103).
The piston rod (48) of the piston-cylinder unit of the second driver (49) is inserted into the hook (104) of the aperture (103') in an overlapping relationship with the inner belt portion (102) together with the inner belt portion (102). ) is the second jaw-like member (4
0), and further characterized in that this second jaw (40) is connected to the assembly support (20).
5. The device according to any one of items 5 to 5. 07. This device comprises a relatively fixed frame (10, 13, 14, 15, 16), a frame (1
0) has an assembly support (20) which can be slid on, first and second jaw members (30, 40), another jaw member (50);
, 50'), the holding device (70) and the first, second, third and other drivers (39, 49, 80, 59) are integrated on the assembly support (20) and the other Driver (85)
is the assembly support (2) facing the object (90) to be clamped.
6. The device according to claim 1, wherein the device slides back and forth. 08. The drive mechanism includes a sequence control for driving the driver (80) of the retaining device (70) to securely hold the clamping structure, and then the first jaw member ( 30), then the driver (49) of the second jaw member (40), then the holding device (70) is stopped, and then the other jaw member (50) is activated. , 50'), and then
The actuator (59) of the other jaw members (50, 50') is stopped, and then the actuator (39) of the first jaw member (30) is stopped.
) and thus the other drive (85) stops the holding device (
70) is actuated and is operable before the first actuator (39) is actuated to move the assembly support (20) together with the assembled parts thereon towards the object (90) to be clamped;
8. Device according to claim 1, characterized in that the further driver (85) is stopped after all other drivers have stopped. 09. A method of automatically assembling and tightening an open clamp (100) around an object to be tightened (90), comprising the following steps: holding the clamp firmly (FIG. 5), ) and place this part around the object to be tightened (FIG. 6), after which the belt part forming the outer belt part (103) is fitted and at least the inner belt part (102) is fitted. One hook (104
) is adjusted to fit into the mating aperture (103') in the external belt section (103) (Fig. 7), and the previously held clamp is released;
holding this time around the object to be clamped and then tightening the clamp around the object to be clamped by means of the clamping arrangement (105) on the external belt part (Fig. 8);
A method characterized by comprising: 10. Operation begins with the parts of the subassembly (20) in the retracted position (FIG. 1), and then
This subassembly (20) is moved towards the object to be clamped (90) until the part (101) of the clamp (100) held in that position is close to the object to be clamped, and then the 10. The method of claim 9, wherein the steps of claim 9 are performed to tighten the clamp around the object to be tightened. 11. Fitting the belt section (102) forming the inner belt section with the first jaw (30), placing the inner belt section around the object to be tightened, and then the belt section forming the outer belt section. (103) by means of the second jaw (40) and then by engaging the other jaws (50, 50') and tightening the clamp around the object to be clamped. (105), characterized in that the other jaw-like members (50, 50') closing to close the plastically deformable ears open and finally retract the tool subassembly. The method according to claim 9 or 10. 12. A pincer-like protrusion portion (
52, 52') to engage at least one outwardly extending hook (104) of the inner belt section (102) with the outer belt section (104) before the ears (105) are plastically deformed.
103), and the pincer-like protrusion portion (52') of one (50') of the other jaw-like member fits into the mating aperture (103') of the other jaw-like member (50').
) The pincer-like protrusion portion (52) arranged opposite to the ear (
The external belt part (105)
12. A method according to any one of claims 9 to 11, characterized in that: 03) is fitted into the leg of the ear (105) opposite the free end.